Combined burner nozzle, nozzle-supporting heat exchange block, and control valve subassembly unit for a waste oil burner



FIG. 1 is a top and right side perspective view of a combined burner nozzle, nozzle-supporting heat exchange block, and control valve subassembly unit for a waste oil burner, showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a left end elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a combined burner nozzle, nozzle-supporting heat exchange block, and control valve subassembly unit for a waste oil burner, as shown. 